Binding-forming machine.



A. F. PRESTON..

BINDING FORMING MACHINE.

APPLICATION FILED JUNE4. I915.

3. fi e Patented Apr. 9, 1918.

2 SHEETS-SHEET I.

AIberT F. Preshm by 7 WKcW ATT'v s A. F.'PRESTON.

BINDING FDRMING MACHINE,

APPLICATION FILED JUNE 4. 1915.

Patented Apr. 9, 1918.

2 SHEETSSHEET 2.

III/Ill InvenTor A! befl F Pre sTQn ALBERT F. PRESTON, OF BOSTON, MASSACHUSETTS.

BINDING-FORMING MACHINE.

Application filed June 4, 1915.

1 '0 all whom it may concern:

Be it known that l, ALBERT F. PRESTON, a citizen of the United States, and resident of Best 11, county of Suffolk, State of Massachusetts, have invented an Improvement in Binding-Forming Machines, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to a novel construction of a binding forming machine.

Flat or sheet patterns are employed in various arts and especially in the boot and shoe industry as forms by which different ma iais are out. These patterns are superposed upon the material to be cut and a knife or other cutting instrument is passed around the edge of the pattern whereby the material is cut into the desired shape and size. The pattern edge must be protected to preserve its contour against ordinary wear incident to repeated handling and against the cutting instrument. Therefore these edges are reinforced by metal. binding, U-shaped in section, which affixed thereto by passing the pattern with the binding positioned on its edge between clenching rollers having opposed peripheral ridges which function to press a narrow longitudinal portion of the binding into the patterns. The disadvantages arising from the use of such peripherally ridged rollers are that the convexity of binding thus applied-the line of pressure being adjacent the end of the binding-unduly thickens the bound pattern and tends to prevent it from resting evenly and flatly upon the material and that relatively deep transverse grooves are pressed in an adjoining pattern edge at corners unless the operative reduces the speed of the machine when approaching corners and stops the machine or removes the pattern therefrom precisely at the corner. These and other disadvantages wellknown to those skilled in this art make it desirable to employ flat rollers which has hitherto been impracticable owing to the fact that usual binding applied to a pattern edge by such means would lack adhesiveness and be of slight utility.

This machine provides a novel binding which may be applied to pattern edges by means of flat or substantially flat pressure rollers which apply approximately equal pressure to the whole longitudinal area of Specification of Letters Patent.

Patented Apr. 9, 1918.

Serial No. 32,242.

the binding when positioned on a pattern.

Retentive adherence of the binding to the.

pattern is assured by means of alongitudinal rib formed on the inner walls of the substantially U-shaped binding which is adapted to be pressed into the pattern surface adjacent its edge. This novel machine also rolls out and thus condenses and hardens the base of the U-shaped binding while per mitting the sides to remain in a relatively flexible condition. y

The object therefore of this invention is to provide a binding forming machine which produces a binding having a longitudinal interior gripping rib or plurality of ribs.

A further object is to provide such a machine which produces a substantially U shaped binding having a hardened base and relatively flexible sides.

Another object is to provide means on such a machine whereby the running output may be accurately measured and cut off.

Other objects of the invention will more fully appear. from the following description and the accompanying drawings and will be pointed out in the annexed claims.

Figure 1 is a side elevation of the binding forming machine;

Fig. 2 is a view in elevation of the opposite side of the machine to that shown in Fig. 1;

Fig. 3 is a view in elevation of the front of the machine;

Fig. 4: is a section on the line el l, Fig. 1;

Fig. 5 is a section on the line 55, Fig. 2;

Fig. 6 is an enlarged detailed view of the front dies;

Fig. 7 is an enlarged detailed view rear dies.

This invention comprises means for first forming a longitudinal rib or plurality of ribs or projections upon a binding strip blank and for subsequently bending the ribbed blank into U-shaped form, the longi tudinal central portion of the binding strip being automatically compacted and hardened of the while the metal of the edgeportions is permitted to remain in its original and flexible condition. In the preferred embodiment of the invention disclosed herein the functions above described are performed by tWo sets of cooperating roller dies, one set being positively driven by a power mechanism hereinafter to be described and the other set actuated by the passage of the binding strip therebetween as it is beingdrawn through the roller dies first mentioned. Both sets of roller dies are pressed together under adj ustable tension and the resistance of one set to the pull on the binding strip exerted by the driven set operates to elongate the binding strip. This function overcomes the defect that the binding when affixed by rollers to iattern ed es is elongated so that. a re-cut b k notch in the binding does not register with the pattern corner for which it was cut.

This novel machine forms the complete binding through the cooperative functioning of two sets of dies, each being of the male and female roller type. These sets are designated as the front and rear dies accord ing, to their mountings upon the standard. The machine comprises a standard 1 having a base 2 preferably made in a single integral casting. Both sets of dies are journaled in the standard, the front dies being powerdriven while the rear dies are actuable only through the drawing of the binding therethrough by the pull exerted on the continuous binding strip by the front dies in rolling the binding through them. The rear dies are geared together so as to secure simul- .taneity of rotation in opposite directions.

The rear female or lower die 3 is mounted upon and revoluble with shaft 4 which has suitable bearings in the standard 1. This shaft extends through the standard and has secured thereto a gear 5 which meshes with a similar gear 6 secured to and rotatable with the shaft 7 which carries, rotatably secured thereto at the opposite end, the rear male or upper die 8. Thus through the intern'iediary of the intermeshinp; gears 5 and 6, the upper and lower rear dies 3 and 8 positively coact to revolve at the same rate of speed and in opposite directions.

The lower die 3 has a peripheral.groove 9 in which the annular ridge 10 of the upper die 8 is received. groove base 12 are slightly rounded as they meet the side walls of the groove while the ridge 10 of the upper die 8 has a small circumferential recess 18 on each side thereof. The base 12 of the groove is made of a width slightly narrower than the width of the fiat metal strip commonly used in forming such pattern bindings. The resultv is that, when the upper .dieis tensionably pressed upon a strip fed into the roove, the body of the strip "will be rolled and hardened while a relatively minute portion of the strip at each side will be forced into the recesses 13, pressed and formed into a hairlike flange or rib 14:. l/VhiIe this selected embodiment shows annular flange formingrecesses oneach side of the face of the ridge 10., it is to be understood that a singlerecess onthe one sidemay be employed to efie-ct the formation of a single gripping flange. Further, an annular recess, or recesses, may be made on the face of the ridge of the up- The corners 11 of the per die as desired in order to form-longitudinalribs on the binding strip fed between the dies.

The shaft 7 is provided with a bushing 15 carried in aboring in the standard 1. The boring tapered toward the end adjacent the rear upper die 8. so that play is had for the bushing at-the die end. A set screw 16 is received in threaded engagement in the standard and is adapted adjustably to, impinge upon the bushing. The tension of" the screw upon. the. bushing which forms. the bearing-for the shaft. 7 functions to depress the. rotatable. shaft and thus to press the ridge 10 of the upper die more forcibly upon the metal strip positioned between the dies.

The relatively large toothed-wheel 17 functions to indicate when certain predetermined lengths of binding have been formed so that the cutting means carried on the front of the machine may be actuated to sever the binding as it issues there from. The reduced portion 18 of the shaft 7 projects beyond the upper die and has formed centrally therein a threaded aperture in which is received in threaded engagement the screw 19. The cap 20 has a projecting portion 21 which impinges against the end of the reduced portion of the shaft 7 and also offers a bearing to the indicator wheel 17. The screw 19, the cap 20 and the hub 22 of the die 8 turn with the shaft 7. Yet, as the space between the cap 20 and the hub 22 of the die 8 is greater than the width of the indicator wheel, loosely mounted on the bearing portion 21 of the. cap, the wheel 17 is free to rotate in the opposite direction. And it is so actuated by means of a pinion 23 secured on the reduced portion 24 01: the lower shaft 4. Indicating means, such as, for example, an arrow A on the face of the indicator wheel, is provided whereby upon each. rotation of the wheel, the cutting means may be actuated and the binding cut off into predetermined lengths. Varying length indications may be obtained by change of gear ratio between the wheel and pinion.

The partially formed binding, having the longitudinal ribs thereon, is drawn through the front power-driven dies. Here its body portion both turned to form outwardly flaring walls so, that the binding assumes its final a substantially U-shaped cross sectionalform and its .final base portion is rolled and hardened. Power is applied by means of a pulley, 25 secured by means of the set screw 26 to-the. stud shaft 27 which has suitable bearingin the standard 1. A worm 28 is secured to andis rotatable with the stud. shaft 27. The worm 28'meshes with and. drives in oppositev directions the-gears 29 and 30 revolubly secured, respectively, to

. the, front upper shaft 31 and the front lower shaft 3. The shaft '31, similarly to the. rear upper shaft 7, has a bushing 33 adjustblock 44, which edge.

ably positioned in a tapered boring by means of the set screw 34 similarly engaging the standard and the bushing. The front dies may, by such means, be sin'iilarly forcibly pressed together.

The front male or upper die 35 is secured to and is rotatable with the shaft 31 while the front female or lower die 36 is similarly affixed to the lower shaft 32. The upper die bears thereon a central peripheral ridge 3? having annular reduced portions 38. This PlOjGCtlllg ridge 37 and its reduced portions 38 are adapted to be received within the peripherally recessed lower die 36. The annular recesses 39 on either side of the groove 40 receive the reduced ridge portions 38 of the upper die While the groove 40 receives the ridge 37. The side walls of the groove 40 and the sides of the ridge 38 are similarly angularly beveled to present a passage so that, as shown in Fig. 6, when the ribbed binding is drawn through these powerdriveu dies the strip will be maintained in proper alinement and the ribs will not be rolled or pressed. The ridge 37 of the upper die is, however, adapted forcibly to press upon the inserted binding strip, turning and forming the sides and rolling and hardening the thus formed base portion. The tension of the ridge upon the binding base, as positioned in the groove, is regulated by the shaft bushing screw 34.

The completed binding as it issues from the front dies is engaged by the guide 41. As shown in Fig. 1, this guide consists of a metal plate secured by the screw 42 and pins 43 to a block 44 affixed to the standard 1. The rear face of the guide corre sponds to the contour of the adjacent roller die and terminates in a slightly pointed portion 45. The completed substantially U- shaped binding, which has a tendency to follow the ridged roller when drawn through these dies, is engaged by the guide portion 45 and ther by stripped from the rollers. The guide, at its lower edge, is of a width substantially less than the base of the binding and may, therefore, be received within the binding and guide it away from the dies to the machine front. The front end of this guide edge functions as the fixed member of coiiperating cutting means. The is affixed to the standard 1 by the screws 46, has pivotally mounted thereon a lever arm 47 Like the guide 41, this arm is preferably made of steel. A transverse notch 48 is formed in the arm at a point whereby, arm, it may cooperate with the fixed guide edge and cut the binding as it leaves the The outer portion 49 of the arm is sufliciently long to aiford a grasp for its manual actuation. In Fig. 3, the arm is shown in normal inoperative position when the binding may run over the notched arm upon movement of the into a suitable receiver. The arm is ;retained in such lower moperative position by means of a pin 50, affixed to and pro ect1ng from the block 44, which engages the top edge of the inner portion 51 of the lever arm.

The operation of the machine is simple. The front and rear dies are slightly separated after releasing the tension of the screws 34 and 16. The material of which this binding is preferably formed is steel in the form of narrow fiat strips. Such material is sold to the trade in coils. The end of this strip is inserted directly from the coil in the rear die groove and is thence fed to the front die groove. The desired tension of the male or upper dies in their respective grooves is obtained by means of the bushing set screws 34 and 16. Power is then applied through the intermediary of a belt to the pulley and the front dies are simultaneously actuated. The tension of the front dies upon the metal strip not only rolls and hardens the base of the completed binding strip but also produces a friction grip upon the strip and functions to draw the strip from the coil through the'rear dies. As the strip is drawn through the rear dies, its two edges are upwardly turned to form longitudinal flanges or ribs which process at the same time hardens these ribs. This ribbed strip then passes to the front dies where the side portions of the strip are turned preferably at an angle less than a right angle to the base or unturned portion. Through adjustment of the set screw 34 impinging upon the bushing of the front upper die, increased tension may be placed upon these dies and the ridge 37 may thus roll and harden the base of the completed binding. The sides of the binding when turned impinge against the beveled sides of the groove 40 while the recess afforded by the beveled sides of the ridge 37 affords an unobstructed passage to the flanges or ribs formed on the binding sides by the rear dies. The completed binding thus issues from the front dies, engages the guide and is presented to the path of the cutting lever arm. The gearing of the indicator wheel, as disclosed, is such that the mark placed thereon completes one revolution when approximately eight feet of binding have been formed-a convenient length. When cutting the binding into such length, the notched arm cooperates with the guide edge and shears off the binding.

While for sake of increased retentivity, ribs are preferably formed on each wall of the U-shaped binding, it is obvious that a single rib may be formed by omitting one of the annular recesses 13 of the upper die 10 and by altering one of thecorners 11 of the groove. 12 so that on one side the side face of the peripheral ridge 10 will arie 9f his-Meat may be ain r firs run-i flus wv t e. r r s onai s e of the. are re t he l e-t This, mye ition thus presents .a novel mach ne for rap dly tormmg a' rlbbed, substant a y U-I ard patt rn ndi av n a hardened base and having its sides left relatively flexible, The flaring sides of this U- shaped; cross sectional form greatly faciliat arrlieat h indi -t e Pa tern edge. hardened base. presents. a more s oeth an ie ble fi eto he cu ting instruments While increased retentlVltYwOf the bindin the pattern e'dgeafforded byv the structure insures greater resistance toddeterioration through rough handling and service Wear.

It is; to. be, understood the embodiment of the invention disclosed herein is illustrative merely and not restrictive and that other forms of dies may beemployed for performing the functions herein described. It'is further to be ul iderstood that various forms of dies may be used to form the gripping ribs or projections and that suchribs orv projections may beformed either at the margin or margins of the binding material or at such; distance therefrom as be found desirable or necessary and that other modifications may alse be made Within the spirit and scope of the following claims.

Having thus described my invention, hat I claim as new and desire to secure by Letters; Patent is:

1. A binding forming. machine comprising sets of roller dies operable to form a substantially U-shaped, flanged binding, one of said sets comprising a peripherally ridged male dieand aperipherally' grooved female die, the male die having circumferential re cesses on. each side; of the peripheral face of the ridge, the female die having the corners of its groove substantially rounded} to cotiperate With said recesses to form a substantially filamentous flange on said binding, said corners andrecesses also cooperat'ingto, prevent. elongation of said'filamentous'fiange. i 2. A binding forming machine comprising a standard, means; for'forming a substantially U-shaped pattern binding a guide positioned to be received ithin the formed binding and to direct the same from said forming means, and a cutting'member cooperable With the end of said guide to shear the formed binding. J

3. A binding forming machine comprising a standard, roller dies operable to form a substantially U-shaped pattern binding, a guide of less Width than the formed binding mounted adjacent the dies, the inner end being pointed and shaped to project between the roller dies to strip the formed binding therefrom and the outer end to project beyond said dies,.the outer end being shaped to form one member of a cutting means, and a cutting member cooperatingtherewith to shear the formed binding'whereby the bind ing is stripped from the dies, guided therebeyond and sheared.

In testimony whereof, I have signed my name to this specification. V

ALBERT PRESTON.

cents each, by addressing the Qomrniss ioner of Patents 

